Locally finite two-loop QCD amplitudes from IR universality for electroweak production

Author:

Anastasiou Charalampos,Sterman George

Abstract

Abstract We describe the implementation of infrared subtractions for two-loop QCD corrections to quark-antiquark annihilation to electroweak final states. The subtractions are given as form-factor integrands whose integrals are known. The resulting subtracted amplitudes are amenable to efficient numerical integration. Our procedure is based on the universality of infrared singularities and requires a relatively limited set of subtractions, whose number grows as the number of two-loop diagrams, rather than with the number of singular regions of integration.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

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Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Tensor reduction of loop integrals;Journal of High Energy Physics;2023-12-27

2. Gauge choice for organizing infrared singularities in QCD;Physical Review D;2023-10-13

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